AI detector APIs ranked by published price per 1,000 words

AI or Not publishes the lowest price per 1,000 words of any text detection API in the index, $5 per million words on its Pro pay-as-you-go rate, which is $0.005 per 1,000 words, per the pricing page on aiornot.com, read 9 November 2026. Phrasly's Business API states $0.02 per 1,000 words scanned, Sapling from $0.005 per 1,000 characters, about $0.0275 per 1,000 words at 5.5 characters a word, and ZeroGPT $0.042 per 1,000 words on its Beginner API tier, all read 8 November 2026. Ten of the 39 detectors with an API publish a price and a unit that convert to text words; six price images, video or audio by the item or the second and sit in a second table; the rest sell through sales or publish no per-word price and sit in a third.

Updated Prices checked 8 November 2026 for the first sixteen cards and 9 November 2026 for the twenty-six added that day, with four API pages re-read live on 9 November 2026

Short answer

The sort is the lowest published price per 1,000 words, a description of the order and not a recommendation: AI or Not $0.005 ($5 per million words, Pro pay-as-you-go), read 9 November 2026; Phrasly $0.02 on a $100-a-month Business plan that includes $100 of credits; Sapling $0.0275, converted from $0.005 per 1,000 characters; Undetectable AI $0.04, from an API Starter plan of $29 for 72,500 word credits where a check deducts a tenth; ZeroGPT $0.042 on Beginner; Originality.ai and Quetext $0.10 each; Walter Writes $0.16, from $49 for 300,000 words a month; Pangram $0.50, from $0.05 per 100 words; Copyleaks $0.68, from a $16.99 Personal plan of 100 credits covering 25,000 words. Every converted figure is shown beside the vendor's own unit. Prices read 8 and 9 November 2026; the next recheck is 8 December 2026. No detector score should be the only evidence in a misconduct or hiring decision.

How we ranked

AI detector APIs ranked by published price per 1,000 words: register plate with the page title and its register ID
Published API price per 1,000 words per detector, from the index data file.

Which AI detector APIs publish the lowest price per 1,000 words?

AI detector APIs ranked by published price per 1,000 words: the decision table
RankDetectorPrice per 1,000 words, convertedAs the vendor states itSource and read dateBest forMain limitation
1AI or Not$0.005 per 1,000 words$5 per million words of text, Pro pay-as-you-go credit rate; Pro is $5 a month with $10 of creditsaiornot.com/pricing, read 9 November 2026Developers scoring text at volume beside image and audio checksThe one study record scored images; 250-character minimum per request
2Phrasly$0.02 per 1,000 words$0.02 per 1,000 words scanned for AI; Business plan $100 a month including $100 in API credits, up to 5,000,000 detection wordsphrasly.ai/pricing, read 8 November 2026Platforms scoring short posts from 50 wordsA $100 monthly plan is the entry point; the vendor sells a humanizer; no study record
3Sapling$0.0275 per 1,000 wordsfrom $0.005 per 1,000 characters, volume discounts to $0.00375, one-time $5 minimumsapling.ai/pricing, read 8 November 2026Teams wiring detection into their own systemsBilled in characters; 31% of human papers returned uncertain in Walters 2023
4Undetectable AI$0.04 per 1,000 wordsAPI Starter $29 a month for 72,500 word credits ($0.40 per 1,000 credits); a Check for AI call deducts a tenth of the words checked, overage $0.40 per 1,000 creditsundetectable.ai/pricing, read 9 November 2026Developers who want text, image, video and audio detection on one keyThe credits are priced for the humanizer; one record on a single text
5ZeroGPT$0.042 per 1,000 wordsBeginner AI Detection $0.042 per 1,000 words; PRO $0.057; VIP $0.072; AI image detection $0.013 per imagezerogpt.com/pricing, read 8 November 2026Pay-as-you-go text checks with a 50,000-character request ceiling13 of 36 AI documents undetected in Weber-Wulff 2023; 77 of 104 in Perkins 2024
6Originality.ai$0.10 per 1,000 words1 credit per 100 words, $0.01 per 100 words on the 5.0 model; Deep Scan 5 credits, Max 10; API access on Enterprise plans from $136.58 a monthoriginality.ai/pricing, read 8 November 2026Publishers who already pay for an Enterprise planThe API is Enterprise-only; 19 of 495 human passages flagged in Epoch AI 2026
7Quetext$0.10 per 1,000 words$0.10 per 1,000 words analyzed from a prepaid wallet, 5,000 free words to startquetext.com/pricing, read 9 November 2026Developers who want a wallet with no subscriptionNo study record; per-sentence probabilities only
8AI Detector Pro$0.12 per 1,000 words$0.09 for each unit, 1 unit being up to 4,000 characters, per POST; API access requires the Unlimited plan ($49.98 a month); 1,000 words at 5.5 characters a word is 5,500 characters, 1.375 unitsaidetector.pro/developers, read 10 November 2026Subscribers who want a per-call price on top of a planThe unit is 4,000 characters, so a 4,001-character text costs two units; the plan is a precondition; no study record
9Detecting-AI.com$0.15 per 1,000 wordsAI Detector API $15 a month for 100,000 detector words; API Bundle $35 a month with 100,000 words for each of three APIs; usage counted in whitespace-separated input wordsdetecting-ai.com/api-pricing, read 10 November 2026Developers who want a flat monthly allowance with an MCP server beside the APIA plan allowance, not a metered rate; unused words do not carry over per the page; no study record
10Walter Writes$0.16 per 1,000 words300,000 words a month for $49, 1 credit per word on text endpoints; 1,000,000 for $129walterwrites.ai/pricing, read 8 November 2026Teams on a monthly word quota with image and voice on the same keyNo study record; per-request limit of the text API not published
11Pangram$0.50 per 1,000 wordsText (Pangram 4.1) $0.05 per 100 words; bulk text API 20% less; Individual plan includes $10 of API creditspangram.com/pricing, read 8 November 2026Developers who want the detector with four indexed recordsThe highest metered text price in the ranked table
12Copyleaks$0.68 per 1,000 wordsPersonal $16.99 a month for 100 credits, 1 credit covering up to 250 words (25,000 words); Pro $99.99 for 1,000 creditscopyleaks.com/pricing, read 8 November 2026Schools already on the Copyleaks platformA plan allowance, not a metered API rate; the API page prints no per-word figure

Priced per image, per second or per result, not per word

DetectorVendor price and unitSource, read date
PangramImage 1.0 $0.25 per image; Image Flash 1.0 $0.05 per image; video $0.05 per secondpangram.com/pricing, read 8 November 2026
AI or NotPro: $0.02 per image, $0.01 per second of video, $0.005 per second of audio; Business: $0.015 per image and 25% less on audio and videoaiornot.com/pricing, read 9 November 2026
Resemble DetectFlex, no subscription: audio $0.035 per second, images $0.035 per image, video $0.07 per second; Team ($350 a month) audio $0.015, images $0.015, video $0.03resemble.ai/pricing, read 9 November 2026
SightengineStarter $29 a month for 10,000 operations ($0.0029 an operation), $0.002 per additional operation; Pro $99 for 40,000sightengine.com/pricing, read 9 November 2026
TruthScanStarter $24 a month for 1,000 results (images and PDF pages), $0.03 per additional result; text billed at 1 credit per word with no price per word publishedtruthscan.com/pricing, read 9 November 2026
WasItAIBasic $3.99 a month for 100 images; Advanced $35 for 1,000; Pro $300 for 10,000wasitai.com/api, read 9 November 2026
Reality DefenderBusiness $399 on annual billing for 1,000 scans a month; Free 50 image scans a monthrealitydefender.com/api, read 9 November 2026
CodequiryGrow from $200 a month (shown as C$272) for 20 web and AI code checks, then C$6.80 a checkcodequiry.com/pricing, read 9 November 2026
IlluminartyBasic $10 a month for 10,000 API requests a day; Pro $30 for 40,000illuminarty.ai, read 9 November 2026

Sold through sales, or no per-word price published

DetectorWhat the vendor publishes insteadSource, read date
GPTZeroThe pricing page's API section offers "View Pricing" and "Contact Sales"; the price table renders by script and showed no figuregptzero.me/pricing, read 9 November 2026
Winston AIPlans sell credits (100,000 a month on Essential at $18); the API page offers 2,500 free credits and prints no price per credit or per wordgowinston.ai, read 9 November 2026
SmodinThe API bills 0.5 words per input word; the API pricing page rendered no pricedocs.smodin.io and smodin.io/api-pricing, read 9 November 2026
Proofademic2,000 trial credits at 1 credit per word; the API page prints no price per creditproofademic.ai/api, read 9 November 2026
SurferAPI V1 is included in the Peace of Mind plan at 299 USD a month billed yearly; no per-word pricesurfer.ai/pricing, read 9 November 2026
HiveEvery AI detection pricing line reads Contact Sales; no text line on the pricing pagedeploy.com/pricing, read 8 November 2026
SensityTalk to sales; no price publishedsensity.ai, read 9 November 2026
Pindrop PulseSchedule a demo; no price publishedpindrop.com, read 9 November 2026
DeepwareAPI and SDK by contact; no price publisheddeepware.ai, read 9 November 2026
CompilatioMagister+ with the API by demo and quote; Studium credits for students at EUR 4.99 for 5,000 wordscompilatio.net, read 9 November 2026
CodeleaksCode metered in tokens of 250 per credit on the Copyleaks plans; the Enterprise API by sales; no AI verdict on code since 16 December 2025copyleaks.com/codeleaks, read 9 November 2026
GLTR and the GPT-2 Output DetectorFree and open source, run locally; no pricegithub.com and huggingface.co, read 9 November 2026
TrinkaAn AI Content Detector API on the developer portal with "For pricing, please contact us at sales@trinka.ai"; the web app meters 1 credit per 5,000 words ($10 for 4 credits)developer.trinka.ai, read 10 November 2026
Ircam AmplifyA music detection API priced in track credits (pay-as-you-go from 2,000 tracks; Enterprise by contract) with no price per track published; the unit is a track, not a worddocs.ircamamplify.io, read 10 November 2026
RADARA Hugging Face Space endpoint the model card calls "our API service hosted on Huggingface Space", free, with no price, quota or documentation beyond the Gradio view=api page; read as a research demo, not a product APIhuggingface.co/TrustSafeAI/RADAR-Vicuna-7B, read 10 November 2026
Hiya Deepfake DetectorAn Audio Intelligence API for voice authenticity, credits-metered with no public price; the unit is an audio verification, not a worddeveloper.hiya.com, read 10 November 2026

One of the plan rankings in the rankings hub, beside free tiers and input limits. The API view lists every card that states an API; this page sorts the ones that print a price. The home board answers which AI detector API publishes a price per word? The free API question, added 9 November 2026, lists the ten cards whose free allowance applies to API calls, from Sapling's 50,000 characters a day to WasItAI's 10 images a month, before the paid rates below.

Which AI detectors should you check first?

  • AI or Not, rank 1Best for: Developers scoring text at volume beside image and audio checks. Main limitation: The one study record scored images; 250-character minimum per request.
  • Phrasly, rank 2Best for: Platforms scoring short posts from 50 words. Main limitation: A $100 monthly plan is the entry point; the vendor sells a humanizer; no study record.
  • Sapling, rank 3Best for: Teams wiring detection into their own systems. Main limitation: Billed in characters; 31% of human papers returned uncertain in Walters 2023.
  • Undetectable AI, rank 4Best for: Developers who want text, image, video and audio detection on one key. Main limitation: The credits are priced for the humanizer; one record on a single text.
  • ZeroGPT, rank 5Best for: Pay-as-you-go text checks with a 50,000-character request ceiling. Main limitation: 13 of 36 AI documents undetected in Weber-Wulff 2023; 77 of 104 in Perkins 2024.

What does each published price mean in practice?

1

AI or Not

Verdict
Fits developers who score text at volume and want image, video and audio checks on the same credits.
Value
$0.005 per 1,000 words, converted from "$5 per million words of text" on the Pro pay-as-you-go rate; Pro is $5 a month with $10 of credits that roll over, and the free plan states 1,000,000 words a month (aiornot.com/pricing, read 9 November 2026).
Best for
Platforms scoring reviews or comments from 250 characters up.
Main limitation
The one indexed record, Ha and Passananti 2024, scored images under the Optic name, so no text rate exists for AI or Not (Ha and Passananti 2024).
Read the AI or Not card
2

Phrasly

Verdict
Fits platforms that already spend $100 a month on detection.
Value
$0.02 per 1,000 words scanned for AI on the Business API plan, $100 a month including $100 in API credits with overage at the same rate and a ceiling of 5,000,000 detection words (phrasly.ai/pricing, business.phrasly.ai, read 8 November 2026).
Best for
Moderation teams scoring short posts from 50 words.
Main limitation
Phrasly sells a humanizer, listed as a DAMAGE 2025 L3 humanizer, and no indexed study tested its detector (DAMAGE 2025).
Read the Phrasly card
3

Sapling

Verdict
Fits teams that want metered characters with a $5 entry.
Value
$0.0275 per 1,000 words, the index's conversion of "from $0.005 per 1,000 characters" at 5.5 characters a word; the calculator shows $0.00375 per 1,000 characters above 10 million and a one-time $5 minimum (sapling.ai/pricing, read 8 November 2026).
Best for
Developers who already hold a Sapling key.
Main limitation
Walters 2023 recorded 31% of human papers returned uncertain, and Kar 2024 read a single text at 100% AI through every paraphrase (Walters 2023, Kar 2024).
Read the Sapling card
4

Undetectable AI

Verdict
Fits developers who want four content types on one API plan.
Value
$0.04 per 1,000 words checked: the API Starter plan is $29 a month for 72,500 word credits, $0.40 per 1,000 credits, and the help article states that a Check for AI call "deducts 10 word credits" per 100 words checked, a tenth of the humanizer rate (undetectable.ai/pricing, help.undetectable.ai, read 9 November 2026).
Best for
Teams that also need the image, video and audio endpoints.
Main limitation
The credits are priced for the humanizer the same company sells; the one record, Kar 2024, scored a single text (Kar 2024).
Read the Undetectable AI card
5

ZeroGPT

Verdict
Fits pay-as-you-go text checks with no subscription.
Value
$0.042 per 1,000 words on the Beginner API tier, $0.057 on PRO and $0.072 on VIP, with request ceilings of 50,000, 150,000 and 500,000 characters (zerogpt.com/pricing, read 8 November 2026).
Best for
Developers who want the request ceiling to grow with the tier.
Main limitation
Weber-Wulff 2023 left 13 of 36 AI documents undetected and Perkins 2024 77 of 104 (Weber-Wulff 2023, Perkins 2024).
Read the ZeroGPT card
6

Originality.ai

Verdict
Fits publishers whose Enterprise plan already carries API access.
Value
$0.10 per 1,000 words, from "1 credit per 100 words" at $0.01 a credit on the 5.0 model; Deep Scan costs 5 credits and Max 10, and the API is listed on Enterprise plans from $136.58 a month billed yearly (originality.ai/pricing, read 8 November 2026).
Best for
Content teams scanning long-form drafts in bulk.
Main limitation
Epoch AI 2026 flagged 19 of 495 pre-2022 human passages (3.84%) (Epoch AI 2026).
Read the Originality.ai card
7

Quetext

Verdict
Fits developers who want a prepaid wallet and no plan.
Value
$0.10 per 1,000 words analyzed from a prepaid wallet, with 5,000 free words to start and per-sentence AI probability in the report (quetext.com/pricing, quetext.com/integrations, read 9 November 2026).
Best for
Small tools adding a detector without a subscription.
Main limitation
No indexed study tested Quetext.
Read the Quetext card
10

Walter Writes

Verdict
Fits teams on a monthly word quota with image and voice on the same key.
Value
$0.16 per 1,000 words at the entry quota, 300,000 words a month for $49 with 1 credit per word on text endpoints; 1,000,000 words for $129 is $0.13 (walterwrites.ai/pricing, docs.walterwrites.ai, read 8 November 2026).
Best for
Teams that also humanize text on the same account.
Main limitation
No indexed study tested Walter Writes; the text API's per-request limit is not published.
Read the Walter Writes card
11

Pangram

Verdict
Fits developers who want the detector with four indexed records on a metered rate.
Value
$0.50 per 1,000 words, from "$0.05 per 100 words" for Pangram 4.1 text, with the bulk API 20% less and $10 of API credits included on the $20 Individual plan (pangram.com/pricing, read 8 November 2026).
Best for
Teams that want the 0 of 495 false positive result of Epoch AI 2026 behind their API (Epoch AI 2026).
Main limitation
Ten times the per-word price of Phrasly's metered rate.
Read the Pangram card
12

Copyleaks

Verdict
Fits schools already on the Copyleaks platform whose credits cover the API.
Value
$0.68 per 1,000 words, converted from the Personal plan's $16.99 a month for 100 credits where 1 credit covers up to 250 words; Pro is $99.99 for 1,000 credits (copyleaks.com/pricing, read 8 November 2026).
Best for
LMS schools checking plagiarism and AI in one report.
Main limitation
A plan allowance rather than a metered API rate; the API page itself prints no per-word figure (copyleaks.com/api, read 8 November 2026).
Read the Copyleaks card
8

AI Detector Pro

Verdict
Fits Unlimited-plan subscribers who want a published per-call price.
Value
$0.124 per 1,000 words, converted from "$0.09 for each unit (1 unit is up to 4000 characters)" at 5.5 characters a word (1,000 words is 5,500 characters, 1.375 units), the Sapling conversion; API access requires an Unlimited plan subscription at $49.98 a month (aidetector.pro/developers, aidetector.pro/pricing, read 10 November 2026).
Best for
Developers already paying for the plan who want billing per request.
Main limitation
Units round up (a 4,001-character text is two units), the plan fee is not in the per-word figure, and no study in the index tested AI Detector Pro.
Read the AI Detector Pro card
9

Detecting-AI.com

Verdict
Fits developers who want a flat monthly API allowance and an MCP server on the same key.
Value
$0.15 per 1,000 words, converted from the AI Detector API plan at $15 a month for 100,000 detector words, the Undetectable AI plan-allowance conversion; the API Bundle is $35 a month with 100,000 words for each of the detector, humanizer and plagiarism APIs (detecting-ai.com/api-pricing, read 10 November 2026).
Best for
Teams that want a predictable monthly bill and a Zapier app or MCP server beside the API.
Main limitation
The figure is a plan allowance rather than a metered rate, so the effective price rises when fewer than 100,000 words are used; no study in the index tested Detecting-AI.com.
Read the Detecting-AI.com card

How we ranked

Field sorted
Published price of a text detection API per 1,000 words in US dollars, converted from the vendor's unit: a per-character rate at 5.5 characters a word, a credit price with a stated words-per-credit ratio, or a plan price divided by its stated monthly word quota; the lowest-priced tier that includes text detection is sorted
Direction
Lower first
Tie rule
More study records first, then name
Qualification
A vendor page that prints a price and a unit for text detection that convert to words; per-image, per-second or per-result prices and "contact sales" are tabled apart
Qualified
12 of 72 detectors

Field sorted: the API price field on each card, written on 9 November 2026 from the plans and API fields read on 8 November 2026 for the first sixteen cards and 9 November 2026 for the twenty-six added that day, with the GPTZero, Winston AI, Smodin and Proofademic API pages re-read live on 9 November 2026. A card qualifies when a vendor page prints a price and a unit for text detection that convert to words: a per-word or per-1,000-word rate, a per-character rate (converted at 5.5 characters a word), a credit price with a stated words-per-credit ratio, or a plan with a stated monthly word quota (price divided by quota). Where a vendor prints more than one tier, the lowest-priced tier that includes text detection is sorted and the others are printed. Direction: a lower price ranks higher, the only sense in which the page says "lowest". Tie rule: more study records first, then product name, so Originality.ai (7 records) sits above Quetext (0) at $0.10. 10 of 42 qualified on 9 November 2026 and 12 of 72 qualify after the ninth and tenth waves (AI Detector Pro and Detecting-AI.com joined on 10 November 2026; none of the twelve tenth-wave cards prints a per-word price); 9 cards price images, video, audio, code or results and are tabled apart; 32 sell through sales, publish no per-word price, or are free software. Full rules: methodology page. The page says which number is lowest and never which tool is cheapest, because a plan's minimum spend, included credits and request ceilings change what a check costs; those terms are printed in every row.

Why numbers differ between sources

Vendors price the same check in different units. Sapling prices characters (sapling.ai/pricing, read 8 November 2026), Pangram prices 100 words (pangram.com/pricing, read 8 November 2026), AI or Not a million words (aiornot.com/pricing, read 9 November 2026), Originality.ai and Copyleaks credits with a words-per-credit ratio (originality.ai/pricing, copyleaks.com/pricing, read 8 November 2026), and Walter Writes and Undetectable AI monthly plans with a word quota (walterwrites.ai/pricing, read 8 November 2026; undetectable.ai/pricing, read 9 November 2026). Undetectable AI's credits are consumed at a tenth of the humanizer rate for a detection call, so the ranked figure is a tenth of the credit price. ZeroGPT shows its pricing in Canadian dollars on the plan cards and US dollars on the API cards (zerogpt.com/pricing, read 8 November 2026); only the US dollar API figures are ranked. All read 8 and 9 November 2026; the Updated line is the date the page last changed.

Sapling's row and GPTZero's absence from the priced table are read together in the Sapling vs GPTZero comparison, which states that the GPTZero card publishes no API price, read 10 November 2026; the customer support QA view reads the API field with three others for support teams.

Questions about AI detector API pricing

Which AI detector API publishes the lowest price per 1,000 words?

AI or Not, at $5 per million words of text on its Pro pay-as-you-go rate, $0.005 per 1,000 words (aiornot.com/pricing, read 9 November 2026). Phrasly's $0.02 per 1,000 words on the Business API is next, read 8 November 2026 (phrasly.ai/pricing).

Is the lowest price the cheapest detector?

The page does not say so. A price per 1,000 words leaves out the minimum spend (Phrasly's $100 a month, Sapling's $5, Originality.ai's Enterprise plan), the included credits (Pangram's $10, AI or Not's $10) and the request ceilings, so what a check costs a given team depends on terms printed in each row rather than on the sort value alone.

How is a per-character price converted to words?

At 5.5 characters a word, so Sapling's $0.005 per 1,000 characters is $0.0275 per 1,000 words (sapling.ai/pricing, read 8 November 2026). The vendor's figure is printed beside the conversion in every row, and the minimum input ranking uses the same rate.

Does GPTZero publish an API price?

Not on the pages read: the pricing page's API section offers "View Pricing" and "Contact Sales" and the table renders by script, so no figure was readable on 9 November 2026 (gptzero.me/pricing). GPTZero is listed in the third table until a page prints a price.

Which APIs price per image or per second instead?

Pangram (image $0.25 or $0.05, video $0.05 a second), AI or Not (image $0.02, video $0.01 a second, audio $0.005 a second), Resemble Detect (audio $0.035 a second, image $0.035, video $0.07 a second on Flex), ZeroGPT (image $0.013), Sightengine (operations), TruthScan, WasItAI and Reality Defender (results, images or scans) and Codequiry (code checks), per pages read 8 and 9 November 2026 and tabled above.

How much does 100,000 words cost on each ranked API?

At the ranked rates: AI or Not $0.50, Phrasly $2.00 (inside the $100 plan credits), Sapling $2.75, Undetectable AI $4.00 (inside the $29 plan), ZeroGPT $4.20, Originality.ai and Quetext $10.00, Walter Writes about $16.33 (inside the $49 plan), Pangram $50.00 and Copyleaks about $67.96 (four Personal months of credits), arithmetic from the figures above, read 8 and 9 November 2026. Minimum spends and plan fees are not included.

Which of the ranked APIs has a study record?

Six: Copyleaks (9 records), Originality.ai (7), ZeroGPT (7), Pangram (4), Sapling (3) and Undetectable AI (1), per the independently tested ranking at index version 2026.11.13; AI or Not's one record scored images. Phrasly, Quetext and Walter Writes have none.

How often is this ranking updated?

The ranking was created on 9 November 2026 from prices read on 8 and 9 November 2026 and changes whenever a vendor's API price or unit changes on the page recorded on the card. The next scheduled recheck of every card's prices is 8 December 2026 (methodology).

Sources and revisions

Sources

  1. AI or Not pricingaiornot.com/pricing
  2. Phrasly pricingphrasly.ai/pricing
  3. Phrasly Business API documentationbusiness.phrasly.ai/docs/ai-detection-api
  4. Sapling pricingsapling.ai/pricing
  5. Undetectable AI pricingundetectable.ai/pricing
  6. Undetectable AI detector API articlehelp.undetectable.ai/en/article/detector-...
  7. ZeroGPT pricing and APIzerogpt.com/pricing
  8. Originality.ai pricingoriginality.ai/pricing
  9. Quetext pricing and integrationsquetext.com/pricing
  10. Walter Writes pricingwalterwrites.ai/pricing
  11. Walter Writes API referencedocs.walterwrites.ai/api-reference/detector
  12. Pangram pricingpangram.com/pricing
  13. Copyleaks pricing and API pagecopyleaks.com/pricing
  14. Resemble AI pricingresemble.ai/pricing
  15. Sightengine pricingsightengine.com/pricing
  16. TruthScan pricingtruthscan.com/pricing
  17. WasItAI API and planswasitai.com/api
  18. Reality Defender API plansrealitydefender.com/api
  19. Codequiry pricingcodequiry.com/pricing
  20. Illuminarty plansilluminarty.ai/en
  21. GPTZero pricinggptzero.me/pricing
  22. Winston AI content detection APIgowinston.ai/ai-content-detection-api
  23. Smodin API reference and API pricing pagedocs.smodin.io/reference/v2-ai-detection-...
  24. Proofademic developer APIsproofademic.ai/api
  25. Surfer pricingsurfer.ai/pricing
  26. Hive pricingdeploy.com/pricing
  27. Sensitysensity.ai/deepfake-detection-for-video-i...
  28. Pindrop Pulse for Contact Centerspindrop.com/pulse-for-contact-centers
  29. Deepware FAQdeepware.ai/us/faq/index.html
  30. Compilatio APIcompilatio.net/en/plagiarism-detection-api
  31. Copyleaks Codeleakscopyleaks.com/codeleaks

Revision log

  1. Ranking created from the api price field written at index version 2026
  2. Free api question linked (seventh wave)
  3. Nine wave 9 cards added
  4. Twelve wave 10 cards added
  5. Nine wave 11 cards added
  6. Twelfth-wave pages linked

Corrections log

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